Dionne, Martin J
Current rating: 1518
Record: 4-3
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 442 | Raska, Mark (1544) | Lost 1-2 | -171483 |
| 2sealed | 618 | Magner, Christopher (1449) | Won 2-0 | +171500 |
| 3sealed | 611 | Pskowski, Timothy (1484) | Lost 0-2 | -181482 |
| 4sealed | 706 | Berry, Michael (1482) | Won 2-0 | +181500 |
| 5sealed | 560 | Thatcher, Kevin (1518) | Won 2-1 | +181518 |
| 6sealed | 522 | Merriam, Ross (1516) | Won 2-1 | +181536 |
| 7sealed | 474 | Varone, Chris (1537) | Lost 1-2 | -181518 |
| average opponent: 1504record: 4-3 | new rating: 1518 | |||